I really like the overall style, it is very solid to look at. Beautiful linework btw.
Crit time:
The red markings are colored very well, but the "fur effect*" is sloppy... even though it's not outright noticeable, I think it's one of those things that if you fix it it will boost the overall perception of the peice.
*By "fur effect" I mean the direction of the smudges that you made in order to make it look like it was on fur. In many areas it does not flow with the grain of the fur. I see you tried in other areas, but it should be everywhere.
Also, work on the backround a bit... the whitey streaks things. Add some different amount of feathering to the white streaks (feathering as in the edge of the brush). A little consistent variation (woo oxymoron) will help it look less flat. By consistent, I mean make all the bases of the white lines sharper, or make all the tips sharper, or something. But throw in some variation.
